QwikSec

Security Database

CVE

CWE

Training

CVE-2021-47937

Published: May 10, 2026

Modified: May 12, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

e107 CMS 2.3.0 contains a remote code execution vulnerability that allows authenticated users with theme installation permissions to execute arbitrary commands by uploading malicious theme files. Attackers can upload a crafted theme package through the theme.php endpoint that deploys a web shell to the e107_themes directory, then execute system commands via the payload.php script.

Vendor	Product	Versions
E107	e107 CMS	affected `2.3.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

ExploitDB-50315

exploit

Official Product Homepage

product

Product Reference

product

VulnCheck Advisory: e107 CMS 2.3.0 Authenticated Remote Code Execution via Theme Upload

third-party-advisory

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.